1.3 Carat Radiant Natural Diamond Prices Comparison
As of February 2026, 1.3 carat radiant natural diamonds usually range from $488 to $12,447, with an average price of $4,860.In the last month, prices for these diamonds are down 0.7%.Compare 175 verified listings across 7 retailers tracked by CaratRadar.
1.3 Carat Radiant Natural Diamond Market Overview
CaratRadar currently tracks 175 verified 1.3-carat radiant natural diamonds listed across 7 online retailers. Prices in this segment range from $488 to $12,447, with an average asking price of $4,860 and a median of $4,790.
The price spread of $11,960 (96.1% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
These figures are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
175 diamonds tracked in this segment
Price range: $488 to $12,447
Average price: $4,860
Median price: $4,790
Available across 7 retailers
Savings potential: up to 96.1%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
175
$488
$4,860
$4,790
$12,447
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIASave 23.3%1.25ct | Radiant | H | SI1 | Excellent
From $4,594
Compare at $5,990
GIASave 27.7%1.25ct | Radiant | H | VS2 | Very Good
From $4,686
Compare at $6,480
GIASave 44.2%1.25ct | Radiant | F | VS1 | Excellent
From $5,665
Compare at $10,161
GIA1.25ct | Radiant | I | VS1 | Excellent
From $4,117
Compare at $4,220
IGI1.25ct | Radiant | FANCY | VS1 | Ideal
From $611
Compare at $666
GIASave 33.8%1.25ct | Radiant | I | SI1 | Excellent
From $3,620
Compare at $5,471
GIA1.25ct | Radiant | J | VVS2 | Excellent
From $4,438
Compare at $4,641
GIASave 33%1.25ct | Radiant | H | VS2 | Excellent
From $4,315
Compare at $6,437
GIA1.25ct | Radiant | J | VVS1 | Excellent
From $4,460
Compare at $4,666
GIASave 14.6%1.25ct | Radiant | H | VS1 | Very Good
From $4,315
Compare at $5,053
GIASave 27.9%1.26ct | Radiant | I | VVS2 | Excellent
From $3,774
Compare at $5,232
GIA1.26ct | Radiant | K | VS2 | Excellent
From $4,366
Compare at $4,559
1.26ct | Radiant | F | SI2 | Excellent
From $5,292
Compare at $5,928
GIA1.26ct | Radiant | J | SI1 | Excellent
From $4,303
Compare at $4,488
1.26ct | Radiant | K | VS1 | Excellent
From $3,071
Compare at $3,895
GIASave 19.8%1.26ct | Radiant | G | SI1 | Excellent
From $3,983
Compare at $4,964
GIASave 31.3%1.26ct | Radiant | G | VVS1 | Excellent
From $5,637
Compare at $8,208
GIA1.27ct | Radiant | J | VVS1 | Excellent
From $5,009
Compare at $5,157
GIASave 26.1%1.27ct | Radiant | H | SI1 | Excellent
From $4,441
Compare at $6,007
GIASave 48.7%1.27ct | Radiant | I | VS1 | Excellent
From $4,215
Compare at $8,215
GIASave 29%1.27ct | Radiant | FANCY | VVS1 | Very Good
From $5,668
Compare at $7,980
GIASave 19.9%1.27ct | Radiant | I | VS1 | Very Good
From $4,606
Compare at $5,749
GIASave 20%1.27ct | Radiant | H | SI1 | Excellent
From $3,911
Compare at $4,887
GIA1.28ct | Radiant | I | VS1 | Excellent
From $6,199
Compare at $6,307
IGISave 47.6%1.28ct | Radiant | FANCY | VVS1 | Very Good
From $804
Compare at $1,533
1.28ct | Radiant | J | VS2 | Excellent
From $4,703
Compare at $5,961
GIA1.28ct | Radiant | I | VS1 | Excellent
From $5,955
Compare at $6,105
GIA1.28ct | Radiant | FANCY | SI1 | Good
From $5,319
Compare at $5,328
GIASave 25.1%1.29ct | Radiant | G | VS1 | Very Good
From $5,390
Compare at $7,200
IGISave 58.7%1.29ct | Radiant | FANCY | VS2 | Excellent
From $488
Compare at $1,182
GIA1.29ct | Radiant | J | VVS2 | Excellent
From $3,900
Compare at $4,034
GIA1.29ct | Radiant | J | VS1 | Excellent
From $3,848
Compare at $3,947
GIA1.3ct | Radiant | H | SI1 | Excellent
From $3,364
Compare at $3,670
GIA1.3ct | Radiant | E | SI2 | Ideal
From $3,650
Compare at $3,750
GIA1.3ct | Radiant | F | VS2 | Excellent
From $6,231
Compare at $6,270
GIASave 23.9%1.3ct | Radiant | H | SI1 | Excellent
From $5,107
Compare at $6,715
GIA1.3ct | Radiant | F | SI2 | Excellent
From $3,190
Compare at $3,319
GIASave 32.9%1.3ct | Radiant | E | VS2 | Excellent
From $6,150
Compare at $9,170
IGISave 65.7%1.3ct | Radiant | E | VVS1 | Excellent
From $802
Compare at $2,340
GIA1.3ct | Radiant | L | VVS2 | Excellent
From $2,763
Compare at $2,828
GIA1.3ct | Radiant | J | VS1 | Excellent
From $3,913
Compare at $4,048
GIASave 25.1%1.3ct | Radiant | G | VS2 | Excellent
From $5,964
Compare at $7,966
GIA1.3ct | Radiant | G | VVS2 | Excellent
From $7,387
Compare at $7,483
GIASave 31.1%1.3ct | Radiant | J | VS2 | Excellent
From $2,870
Compare at $4,167
GIASave 27.9%1.3ct | Radiant | J | VS1 | Excellent
From $3,558
Compare at $4,936
GIA1.3ct | Radiant | D | SI1 | Excellent
From $5,010
Compare at $5,184
GIA1.3ct | Radiant | G | VS2 | Ideal
From $5,040
Compare at $5,210
GIA1.3ct | Radiant | E | VS2 | Excellent
From $5,867
Compare at $6,191
GIASave 19.7%1.3ct | Radiant | F | VS1 | Excellent
From $5,924
Compare at $7,380
GIA1.3ct | Radiant | F | VS1 | Very Good
From $6,592
Compare at $6,960
Entry pricing in this category starts around $488.
What to Know When Shopping for 1.3 Carat Radiant Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $11,960 or more.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $4,790 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Compare natural vs. lab-grown options for the same carat and shape. Lab-grown diamonds are chemically identical but often 30-50% less expensive.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 175 comparable stones in this segment. Prices start around $488 and go up to $12,447.
Based on the latest market data, the average asking price is about $4,860 with a median around $4,790.
The observed spread is roughly $11,960 across tracked listings, which is about 96.1% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $4,790, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 7 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $11,960 across sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
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Tracking Natural inventory for 1.3 carat Radiant diamonds.